Knowledgeable
Knowledgeable is an adjective used to describe someone who possesses substantial knowledge or information about a particular topic or area. A knowledgeable person is well informed and capable of explaining facts, concepts, or procedures related to that topic. The term can apply to both specialists and laypeople who have learned a great deal through study, experience, or exposure. It is commonly used with phrases such as knowledgeable about a topic or knowledgeable in a field.
Usage and nuance: Knowledgeability implies depth and accuracy within a domain, but it does not guarantee impartiality
Etymology: The word combines knowledge with the suffix -able to form a descriptor meaning "possessing knowledge."
Related terms: Synonyms include informed, learned, well-informed, and expert. Antonyms include ignorant and uninformed. The noun